In his first-ever interview, the sole Australian survivor of the Waco siege has revealed to 60 Minutes what really took place during the 51-day stand-off, and why he believes crazed cult leader David Koresh will one day return to Earth as the son of God.

Senator Arthur Sinodinos to front ICAC

Liberal senator Arthur Sinodinos is to appear before the NSW corruption watchdog on Thursday to give evidence about his role at an Obeid-linked company allegedly used to funnel taxpayers' money to the Liberal Party.

NSW's Independent Commission Against Corruption (ICAC) is probing claims Australian Water Holdings (AWH) charged state-owned Sydney Water hundreds of thousands of dollars in administration fees, which was then used for various purposes including limousine rides and donations to the Liberal Party.

Senator Sinodinos became an AWH director in 2008 and was later appointed chairman of the company, in which the family of corrupt former NSW Labor minister and powerbroker Eddie Obeid allegedly had a secret 30 per cent holding.

From 2009 to 2011, Sinodinos was also the NSW Liberal Party treasurer.

Several times during the inquiry, ICAC's assisting lawyer, Geoffrey Watson, said the senator, once a chief of staff to former prime minister John Howard, was paid more than $200,000 for about 100 hours of work annually.

It's been alleged he was hired for his Liberal contacts as the politically-connected board of AWH, on which Liberal powerbroker Nick Di Girolamo also featured, suspected the then-Labor state government was likely to lose the 2011 election.

Shareholders of AWH stood to make hundreds of millions of dollars if a public-private partnership was agreed to by the government, with ICAC hearing that Senator Sinodinos would have likely pocketed about $10 million.